Bag closing and tying machine.



J. .BESSEN.

BAG CLOSING AND TYINGV MACHINE.

APPLICATION FILED [,EB- 25, 1916- I 1 ll 9&41661 Patented Aug, 29, 1916.

6 SHEETS-SHEET I.

, fray/m- MM-W 70 ,ZWMES flax-ELEM rllll J JESSEN.

BAG CLOSING AND TYlNG MACHINE.

1 APPLICATION FILED FEB. 25, 1916-- A 19 afififl Patented Aug. 29

6 SHEETS-SHEET 2.

J. JESSEN.

BAG CLOSING AND TYING MACHINE.

, APPLICATION FILED FEB. 25 I915- I I WAWI Patented Aug. 29, 1916.

6 SHEETS-SHEET 3- WI r/vfwfa lNIEWTOR JEWWES J SSE/M 1/1 arr-a lYfK LlESSENJ BAG CLOSING AND TY|NG MACHINE.

APPLICATION FILED EEB. 25, $916.

U .3 m k 6 I ml J.JESSEN. BAG CLOSING AND TYING MACHINE.

APPLICATION FlLED FEB. 25' 1916- Patented Aug. 29, 1916 6 SHEETS-SHEET,

WITNESSES INVENTORJ JZY/VEJ JESSg/Y I. JESSEN.

BAG CLOSING AND TYING MACHINE.

APPLICATION FILED FEB. 25. 1916f 6 SHEETS-SHEET 6.

. y F1617 um 50- a4 I Q55 N o o 96 72- 52'. J

7 77 '73 Q N o I q I j 5/ v. H f

. 7/ 93 8% WITNESSES v "/NVE/VTOR Patented Aug. 29, 1916.

JAMES JESSILZN, or MINNEAPOLIS, MINNESOTA, ,ALSSIGNOB. T0 HENRY OB. HARDING,

- or MINNEAPOLIS, MINNESOTA,

BAG CLOSING AND TYING MACHINE.

Specification of Letters Patent.

Patented Aug. 29, 1916.

Application filed February 25. 1916. Serial No. 80,389.

1 zen of the United States, residing at Minneapolis, inthe county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Bag Closing and Tying Machines, of which the following is a specification.

My invention relates to bag closing and tying machines and has'for its object to provide improved means'for compacting and holding compacted theneck of a sack in such position that a portion of said neck is ex? posed above the compacting means and adapted to receive loops of cord laid about the same by mechanism of the type disclosed in my co-pendingapplication, Serial Number 21,020, filed April 13,1915.

It is the object of my present invention to provide improved means for fitting the neck .ofthe sack into the tying head and compacting the same forlitting the body of the sack to the tying point and for discharging the sack after the same is tied together,- with safety means for reventing accidental operation of the devlce when certain parts are larly poineed out in the claims.

In the c rawings, illustrating the applica- ,tion of my invention in one form, Figure 1 is an elevational part sectional view of a machine embodying myimprovements. Fig. 2 is a part sectional plan showing some of the members in one position, and Fig. 3 is a similar plan 'showing the members in changed position, owing to the fit of the sack. Fig. 4 is a vertical section taken on line of Fig. 5.

drawn to-a larger scale."

As illustrated, the machine is supported upon a'standard 10, on which 1s a carrlage 11 vertically adjustable by means. of a worm Fig. 5 is a top plan view showing generally the manner of tripscrew 12 and hand crank 13, said carriage comprising a platform 14 overwhich runs an endless belt 15 driven through a worm 16 slidable on a driving shaft 17. A looping finger 18.is operated by gearing 19 and lays the cord 20, which has its end secured by a holder 21, in loops about the sack mouth, said cord extending through the looper 18 and tension'devices 21 to a source of supply not shown. Power is obtained from a constantly-driven pulley 22, which through shaft 23 and bevel gearing 24 continuously drives a pair of fluted rollers 25, 26 located above the'tylng plate 27 of the machine. The various sack-comprising and tying movements are intermittently effected from the shaft 23 through a system of gearing 28 rendered operative by clutch means 29 which are actuated through a trip 30 mounted upon a sleeve 31 slidable upon shaft 23, the operation of said trip being efiected by means hereinafter described. The above parts are all substantially the same as those shown and deseribedin plication. a

Generallyspeaking, the clutching mechanism referred to generally by the numeral 29 comprises an internal ratchet 32 which is engageable by a pivoted dog 33 on an arm 34. The arm 34 has driving connections with..a ca'm drum 79 fast on the shaft 35 and is normally held in inoperative position by a finger 36 on the trip 30 above referred to. The sleeve 31 has connected thereto a rod 37 which extends horizontally along the top of the machine and which is surrounded by a the above enumerated ap- .spring 38 extended between a collar 39 thereon and a stand 4( in which the rod 37 has a bearing, the sprlng 38 acting to slide the sleeve 31 so as to hold the finger36 in position to engage an arm or finger 41 on pawl 33 to hold the pawl inoperative. When rod '37 and sleeve'31 are slid so as to withdraw the finger 36 from the pawl arm 41 the pawl is thrown into engagement with a tooth of the internal ratchet 32 and the mechanism controlled from cam- 7 9 is operated. If, then, a

finger 36 is-immediately restored to initial position the pawl 33 will be'disengaged when the cam 79 has made one complete revolution. I r

Upon the constantly-driven shaft 42,

which carries the crimping roller 26, is fast a gear 43 and a ratchet 44. A- plate or disk 45 rests loosely upon the gear and ratchet and has thereon an arm 46 to which is piva vertical I :52 connected with the main frame of the Connected'to rotate with plate 45 oted a dog 47 adapted to engage the ratchet.

machine. by means of pin 53 extending through any one of a plurality of-spaced apertures 54 in the disk 45 is a dog 55 adapted to engage I sure of spring 38, withdrawing finger 36 so" as to release dog33 andclutch shaft 35 to constantly-driven gear 28.

a shoulder 56 on rod 37. It will be apparent that when shaft 51 oscillated the dog 47 will be released and will form a driving connection between constantly-driven gear 43 and plate 45 and dog 55. carried thereby. Dog 55 will then engage shoulder 56 and slide the rod 37 and sleeve 31 against pres- The tying plate 27 is formed with a inner-edge curved as indicated at 58 andhaving a terminating recess at 59. Ex tending across the inner edge 57, as best.

\ shown in Figs. 2, 6 and 7, so the end there which has of comes below plate 27 and at the rear-of crimping rollers 25 and 26 is a finger 60,

formed integral with an arm 61, which in' 3 turn is fast on shaft '51.} When a- 'sackisfed between the crimpingrjollers 25 and 26, as will later be pointed out, it engages finger 60, oscillates shaft 51 anolwithdraws i10e'49, thus setting in action-the train of operations above described.

Spaced from the edge 57 of plate 27 so as to leave a passageway 62 between the edge 63 thereof and the edge 57, is a slide 64 a bead slide so that the same is base member 67. A strong torsion spring 72 surrounding said shaft 71 'has one end fast in stand 52 and the other .position shown in Fig; 6. to that shown in Fig. 3,. thereby closing the passageway 62 .55 4

from adjacent the cr mping rollers 25 and 26 to the. tying pointv 59. arm '74 fast pivotally connected there on shaft 71 has with a link 75 provided at'its upper end with a cam roller 76, part of which runs in a vertical guide. 'slot 77 and" the rest of which runs in a'cam groove'78 on the cam drum 79 fast on'shaft 35. The groove '78 extends around drum 7 9 along a single vertical plane orcircumference of the drum,

excepting at one point where it-is" oflset as 'with shaft 35. I -said rotation the cam surfaces 81 in enparts to original 65 that slides in a groove 66 on a base frame member 67 guiding said adapted to move in- -a straight line. Within a transverse slot 68 in slide 64 is a roller 69 on an arm 70 which is fast on a vertical shaft 71 journaled in fstand 52 and stub shaft 96 and has an extension 97 at one indicated at ,80, having oblique. walls as siown at 81 and a substantially right-angled drop as shown at 82 where it is positioned below roller 76 when the parts are at rest, as indicated in Figs. 5-and 6. A second arm 83 is formedintegral with arm 74 V and has a shoulder 84 thereon adapted to be engaged by a 'dog which holds the parts 7 rocked, carrying slide. 64 from the position indicated in Fig. 2 to that shown in Fig. 3. At the same time link and cam roller 76 will'be drawn down so as to come to the inner'limit of cam groove 78. The parts will then be set in operation as heretofore described and cam drum 79 will be rotated Before the termination of gagement. with roller 76 will restore the position against the force ofspring 72,and dog 85 will drop into po 'sition to engage. shoulder 84 before cam roller 76 leaves the offset cam portion 80, a spring 86 on shaft 51 tending atall times to hold the dog 85 in contact with the end of arm 83 as soon as the feed of the sack through passageway 62 releases'finger 60.

In order to revent accident through inadvertent shifting of rod 37. manually, which rodis in an exposed position, an arm 87 fast onshaft 51 has a toe 88 in engage ment with the end-of'rod 37, by which means ing simply a normal operation of the machine.

After the sack mouth has been carried into'the closed passageway 62 by means of the feed rollers 25- and 26 it is necessary that the sack mouth shall be compacted at the tying point 59, and this is effected by? pusher bar 89. This bar is pivotally connected at one end to an operating arm 90 and has adjacent the other end a cam roller 91' operative in a cam slot 92 formed in plate 27, said cam slot, as best shown in Fig. 6, is provided with a branch 93-curved away from the passageway 62. Adjacent the roller 91 the pusher 89 is provided with an engaging head 94, which it will be seen. is

held at one side of passageway 62 when the pusher bar 89 is fully retracted and the roller 91 carried to one side into branch 93 cam slot 92. Arm 90 is journaled on a side of anarm 98, also 'journaled on shaft 96, and has a pin 99 held in a socket at the end of'arm 97 and provided with a collar bar 89 forward and engagement of roller 91' 100 between which and a plate 101 on arm when the cam drum is set in motion by the means hereinbefore described, the arm 98 will, at the proper time in the sequence of operations and after the expanded sackmonth 105 (shown in Fig. 2) has been fed past rollers and 26, be rocked from the position shown in full lines to that shown in dotted lines in Fig. 3. This moves pusher in slot 92, 93 first causes head 94 to be moved across passageway 62 and then causessald head to follow the passageway to the position of the same shown in dotted lines in Fig. 3, where the sack mouth is compacted at the end of the passageway 62 as indicated at 59. A groove 106 in the side of pusher 89 receives a tongue 107 formed on plate 27,

' beneath which and along a slot 108 formed thereof and the top-plane of plate 27 are a pair of guide members 110 and 111, each of in the side wall of plate 27, as best shown in Figs 1 and 4, the body of the pusher is operated' By this means the pusher is held from movement up or down as it is moved to compacting position, and the sack material is prevented from entering between the pusher and sides of passageway 62. The spring 102 permits sufficient yielding to allow for variations in the aggregate size of the compacted sack mouth and to prevent cutting the material of the sack or injuring any of the parts. It will be observed that the pusher operates underneath the feeding rollers 25 and 26, which are spaced sufiicientlyabove the plane of plate 2.7 to permit this, as clearly shown in Fig. 1. At the entrance of passageway 62, and also positioned so as to leave a space between the lower ends which curves outwardly as shown in.Figs.

2 and 3, forming an effective means for read ily guiding the edge of the sack mouth 105 into passageway 62.

As heretofore stated, the endless belt 15 is driven through a worm 16 splined on a shaft 17. As best shown in Fig. 8, this shaft is normally driven through a bevel gear 112 on the end of shaft 17 which meshes with a bevel gear 113 having its hub 133 loose on a shaft 114 journaled in the parallel arms of a bracket 115. Shaft 114 has thereon a bevel gear 116 which meshes with a bevel gear 117 on constantly-driven shaft 23. A- clutch 118 is splined on shaft 114 and is controlled by a clutch fork 119 pivoted at 120 to bracket 115 and having fast with the arm thereof an arm 121 which engages a cam 122 on' cam drum '79. The cam 122 is for themaj or portion of its length relatively raised, having a' depressed portion 123 with a sloping wall 124 on one side and an abrupt wall 125 on the other. A roller 126 on the end of arm 121 is normally held in the depressed portion 123 by a spring 127 surrounding shaft 114 and engaging clutch 118. Driving connection is thus normally established through hub or sleeve 133 and bevel gear 113 with shaft 17 and worm 16,

so that endless belt 15 will normally be'in terminate driving action of belt 15. This will take place just after the sack has been moved to the position indicated by full lines in Fig. 1 and just before the completion of the compacting movement of pusher 89. The endless belt runs over platform 14 and a sack-receiving platform- 128 overlies a portion of the belt, as shownin Fig. 1, leaving only apart 129 of belt 15 exposed. The filled sacks are moved from the weighing machine upon the platform 128 and slid bythe operator off from said platform upon the receiving portion 129 of endless belt. The body of the sack is forwarded by said moving belt at the same time that the ex panded sack mouth is carried into passageway 62 and fed through the same first by the feeding rollers 25, 26 and thereafter pusher head 94. As heretofore pointed out, the 'movement of sack mouth 105 through passageway62 causes it to engage finger 60, which operates simultaneously to withdraw dog 85, releasing slide 63, and to withdraw toe 49, releasing dog 47 and set-' ting in operation the dog 55 on plate 45. Dog-.55 is spaced from shoulder 56 (by the ,adjustable connection through holes54) so motion, the first operations of which will be p to actuate pusher 89 and terminate driving action of endless belt 15 with the sack in the position indicated in full lines in Fig. 1. At the expiration of a complete revolution of cam drum 79 the slide 64 will be retracted through operation of cam wall 81 of cam groove 78 upon roller 76, pusher slide 89 will also be withdrawn, and immediately preceding which the roller 126 will drop over the abrupt wall 125 into depression 123 and the drive of endless belt 15 will be a resumed. The lower end of the sack will begin to be fed ofi over the roller 131 which carries the front end of endless belt 15 toward a slide 132'which has a wall 134 adjustably connected with a wall 135 of a trough having therein an endless-carrier 136. At the time of or just before the belt resumes feeding action, the compactedsack mouth will "be released withdrawal of slide 64 and pusher head 94, leaving the large opening mouth may readilypass, the sack by gravity as indicated in dotted lines in Fig.1 over slide 132 and upon endless carrier 136.

'l lclaim:

walled passageway,-

P1. A machine for operating upon sacks comprising means for receiving the mouth 7 of a sack includlng a fixed member and a movable member positioned in a common one'another so as to means for moving the prolong the parallel movable member to and means controlled by movement of the sack mouth for-render- 1 mg said moving means operative.

-. tial position. 3." A -machine for I to a tying-head, a wallxparallel with some distance in" operation the sack-ifor 2. A machine for operating upon sacks comprising sack-mouth feeding means, fixed and movable plates spaced from one another in .a-common passageway for moving the movable plate to passageway, and means thereafter for restoring the movable plate to 1mcomprising a plate having a wall extending movable plate havmg'a short of. the tying head, means for feeding moving the tying head so as to complete the passage- I way thereto.

4. A machine comprising sack-mouth feeding jmeans,

fixed-plate a movable plate shorter than the i passageway along which the sack mouth is" fixed plate andspaeed therefrom to form'a fed, means holding the movable plate in a rearward position, means tending to move thelmovable plate quickly into its forward "fixed plate, Lfixed plate I the movable plate position, and means, for releasing said hold 'ing' means to. permit such quick movement; 50

.icomprising' sack-mouthf'feeding means, a-

i a movable'plate shorter than the and spaced therefrom to form a "passageway along which the sack mouth is 5. A machine for operatinguponsacks fed, meansfholding the movable plate in a I rearward vposition, means tending to move quicklyintoli'ts forward position, and means extending" across-the assa-geway and actuated by movementof the sack therethronghi for releasing the permit. such quick: move-' holding means to feeding means, a

fixed plate, a movable platejfshorter-than the.

180'. through which said sack falling operating I upon sacks and spaced from saidfirst-named wall and normally extendingthe sack mouth, and means set' afterthe beginning of feed of: the movable plateto" for operating upon sacks mouth movement of the sack f mouth feeding means,

:I'novement' of the sack fixed plate and spaced therefrom to form a passageway along which the sack mouth is fed, means holding the movable plate in a rearward position, means. including a spring held :set by the holding means tending to move the movable member quickly into its forward position, and means for releasing the spring. a 7. A machine for operating upon sacks comprising sack-mouth feeding means, a fixed plate, a movable plate shorter than the fixed plate and spaced therefrom to form a passagewayv along which the sack mouth is. fed, means holding the movable platein a rearward position, means including a spring held-set by the holding meanstending to move the movable member quickly into its forward position, and an arm connected with the holding means and having afinger extending'across said passageway in posiby the ed e ofthe sack mouth as the' sameis fed an operate the holding means to release the spring. r 8. A machine. for operatingupon sacks comprising means for. receiving the mouth of :a sack including a fixed memberand a movable member positioned in a common plane and spaced from one another/so as to form a passageway, means tending to move themov'able member to prolong the parallel walled passageway, constantly-operating sack-mouth feeding "means, intermittentlyoperative means for forwarding and compacting the sack mouth at the end of said passageway,,-and means controlled by movement of the sack mouth by said feeding meansfor rendering operative the means for moving .the movable member. s

9. A machine for operating .upon sacks continuously operative sack-' comprising feeding means, fixed andmovable plates spaced from one another in a common. plane to form a passageway through which the sack is fed, means controlled by through the passageway by said feeding means for movingthe movable plate to' extend the passageway, and an intermittently-operative pusher for forwarding said sack mouth through said extended passageway and compacting the same at the end thereof.

H A machine-for" operating upon sacks comprising i continuously operative sackfixed and movable plates spaced-fromone another inv a common plane to form a passageway through whi'chthe sack -is fed, mean'scontrolled'by' throu' h the passa eway by said feeding means for moving t e' movable plate to extend the passageway, an intermittently-operative pusher for for.- warding said sack mouth through .said extended passageway and c'ompacting the same at the end thereof, and means there after for withdrawing the pusher and rea plate to extendjsaid passageway, a pusher storing the movable plate to initial-position to release the sack mouth.

through which the sack is fed, means controlled by movement of the sack through the passageway for moving the movable for forwarding the sack'mouth through said extended passageway and compacting the same at theend thereof, and means set in operation by actuation of said sack-controlled means for operating the pusher.

12. A machine for operating upon sacks comprising continuously-operative sackmouth feeding means, .fixed and movable plates spaced from one another in a OOH]:

'mon plane to form a parallel-walled passageway through which the sack is fed, means controlled by movement of the sack through the passageway for moving the movable plate to extend said passageway, a pusher for forwarding the s ack mouth through said extended passageway and compacting the same at the'end thereof, means set in. opera- .tion by actuation of said sack-controlled means for operating the pusher, and means thereafter for wlthdrawing the pusher and restoring the movable plate to initial position to release the sack mouth.

ously-operative 13. A machine for operating upon sacks comprising spaced members forming a passageway between the same'for receiving the extended mouth of the sack, and a pair of members upwardly-extended and curved away from the entrance to said passageway for guiding the sack mouth thereto.

14. A machine for operating upon sacks comprising spaced members forming a passageway between the same for receiving the extended mouth of the sack, a pair ofmembers upwardly-extended and curved away from the entrance to said passageway for guiding the sack mouth thereto, continumeans for feeding the sack mouth along said passageway, and intermittently-operative means for forwarding the sack mouth through said passageway and compacting the same at the end thereof.

15. A machine for operating upon sacks comprising spaced. members forming a passageway between the same for receiving the extended mouth of the sack, a pair of mem- I bers upwardly-extended and curved away sageway, a pusher having an engaging portion thereof normally held at one side of the passageway, and means for operating the pusher to cause said engaging portion to enter the passageway and thereafter to move" the same along the passageway for forwarding the sack mouth through said passagewa and compacting the same at the end thereo 17. A machine for operatingupon sacks comprising spaced members forming an ex tended passageway between the same for receiving the extended mouth of the sack, one of said members having a cam slot therein with a branch curving away from the passageway, means for carrying the mouth of .the sack-into the passageway, a pusher bar having a cam roller operative in said slot wherebyin the retracted position of the bar the engaging end thereof will beheld at one side of the. passageway, and means for periodically actuating the bar, said roller and slot operating to carry the engaging portion of the bar into the passageway and thereafter guide the same along said passageway for forwarding the sack mouth and compacting the same at the end of thepassageway.

'18. A.machine for operating upon sacks comprising spaced members forming an extended passageway between the same for receiving the extended mouth of the sack, one of said members having a cam slot therein with a branch curving away from the passageway, means .for carrying the mouth of the sack into the passageway, a pusher bar having a cam roller operative in said slot whereby in the re tracted position of the bar the engaging end, thereof will be held at one side of the passageway, means for. eriodically actuating being formed with a groove in the side 12o thereof, and a guide rib for entering said groove to steady the pusher member as the same is operated.

19. A machine for operating upon sacks comprising spaced members forming a passageway between the same for receiving the extended mouth of. the sack, continuously operative means above the plane of said members for feeding the sack along said passageway, a pusher having an engaging ing the mouth of the sack thereto and compacting the same,-sack-.frwarding means 'comprisinga tying head and means for feed havinga portion normally held at one side of said passageway and in aplane below saidfeeding means,- and means for intermittently .operating.the pusher to bring said engaging portion into the. passageway and thereafter to move the same along the passageway and below'said feeding means for forwardingthe sack mouth through said passageway and compacting the same at theend thereof.

- 20. A machine for operating upon sackscomprising 'a'tying head and means for feedembodying a pair of platforms, and an endless belt running between said platforms and portion exposed above the" lower and beyondthe end of the upper of said platforms and extending to a: point beneath the tyinghead.

' ingthe mouth of thesaokthereto and com embodying a pair --endless belt having its axis immediately beand beyond the end'of the upper of said platforms, a front roller for. .driving' said nea'th the tying head, and a chute extending tangential to said roller. 1

'22. A machine for operating upon'sacks comprising-a tying head and means for: feed- 1 ing the mouth of the sack thereto and lcompacting the same, sack-forwarding means embodying a pair of platforms, an endless belt running between said platforms and having a portion exposed above the lower.

and beyond the end-of the upper-of said platforms and extending to a point beneath the tyinghead, normally-operative ,means for driving said-belt, and

means controlled by feed of the sack month said belt.

1 comprising a tying head and means for-feeding the'mouthof the sack thereto and comsack-forward ng means pacting the same,

of platforms, an endless embodying a pair I belt running between said vplatforms and having a portion 'andbeyond the end of the upper of said exposed above the lower platforms and extending toa point beneath "feed ofthe sack mouth intermittently terminating operation of said the tying head, normally-operative means for drivlng said belt, means controlled by "ing the mouth I s and render the belt '21. Amachine-for operating uponsacks to the tying'head for intermittently't erminating operation of a t ing head-for intermittently 23. A machine for operating uponv sacks to restore operation to the tying head for mouth so that movement of the belt is terminated when the body of the sack'has been carried on saidbelt to a point directly be neath the tying head.

240A machine .for operating upon sacks comprising a tying head and means for feed, 0f the sack thereto and compacting and" holding the same, aplatform for receiving sack including an endless belt, normallyoperative means for driving said belt, means contrdlled by feed 'ofthe sack mouth to the tying head for intermittently terminating operation of said belt, and means thereafter operative to release the compacted mouth 25. A machine for operating upon sacks comprising a tying head and means for feeding the mouth of the sack thereto and compacting and holding the same, a platform for receiving and feeding the body of the sack including an endless belt, operative means for driving said belt, means controlled by feed of the sack mouth to the tying head for intermittently terminating operation of said belt, means thereafter operative to release the compacted mouth and render the belt-driving means operative, and means for rendering operative said belt driving means'after the release of the sack.

and feedingthe body of the driving means operative.

' normally- 26. A machine for operating upon sacks comprising a tying head and means for feed ing the mouth of the sack thereto and compacting andholding the same, sack-forwardroller for driving said endless belt having its axis, immediately beneath the tying head,

' a chute having the bottom wall thereof extending tangential to said roller, normally JAMES JESSEN.

riving means inoperative for a definitely timed my signature Witnesses F. A. WHITELEY, H. A. BowMAN,

9 5 1ng means embodying an endless belt, a front 

